A benign tumor of nerve sheath origin occurring in the dermis of a thumb is described. Histologically, these lesions contained nests and cords of large cells surrounded by thin bands of collagen fibers scattered in a myxoid background. The immunocytochemical reaction for S-100 protein was positive.
EnzingerF.M., WeissS.W.: Soft tissue tumors.Mosby, St. Louis, 1983.
3.
EpsteinJ., UrmacherC.: A cutaneous neoplasm with neural differentiation.Am. J. Dermatopathol. Dec., 6(6): 591–593, 1984.
4.
GallagerR.L., HelwigE.B.: Neurothekeoma. A benign cutaneous tumor of neural origin.Am. J. Clin. Pathol., 74: 759–764, 1980.
5.
HarkinJ.C., ReedR.J.: Tumors of the peripheral nervous system.Atlas of tumor pathology; second series; fascicle 3; Armed froces institute of pathology, Washington, 1980.
6.
MacDonaldD.M., Wilson JonesE.: Pacinian neurofibroma.Histopathology, 1: 247–255, 1977.
7.
NakajimaT., WatanabeS., SatoY., KameyaT., HirotaT., ShimosatoY.: An immunoperoxidase study of S100 protein distribution in normal and neoplastic tissues.Am. J. Surg. Pathol., 6: 715–727, 1982 (a).
8.
NakajimaT., WatanabeS., SatoY., KameyaT., ShimosatoY., IshiharaK.: Immuno-histochemical demonstration of S100 protein in malignant melanoma and pigmented nevus, and its diagnostic application.Cancer, 50: 912–918, 1982 (b).
WeiserG.: An electron microscopic study of Pacinian neurofibroma. Virchows Arch.Abt. A Pathol. Anat., 366: 331–340, 1975.
13.
WeissS.W., LanglossS.M., EnzingerF.M.: Value of S100 protein in the diagnosis of soft tissue tumors with particular reference to benign and malignant Schwann cell tumors.Lab. Invest., 49: 299–308, 1983.
